WO2007129835A1 - Composition de résine à bonne résistance à la rayure - Google Patents
Composition de résine à bonne résistance à la rayure Download PDFInfo
- Publication number
- WO2007129835A1 WO2007129835A1 PCT/KR2007/002187 KR2007002187W WO2007129835A1 WO 2007129835 A1 WO2007129835 A1 WO 2007129835A1 KR 2007002187 W KR2007002187 W KR 2007002187W WO 2007129835 A1 WO2007129835 A1 WO 2007129835A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- resin
- resin composition
- weight
- shell
- styrene
- Prior art date
Links
- 239000011342 resin composition Substances 0.000 title claims abstract description 46
- 239000011347 resin Substances 0.000 claims abstract description 115
- 229920005989 resin Polymers 0.000 claims abstract description 115
- 239000011258 core-shell material Substances 0.000 claims abstract description 42
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 55
- 239000000178 monomer Substances 0.000 claims description 46
- 229920001971 elastomer Polymers 0.000 claims description 36
- 239000005060 rubber Substances 0.000 claims description 35
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 27
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 27
- 230000003678 scratch resistant effect Effects 0.000 claims description 26
- 239000000203 mixture Substances 0.000 claims description 24
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 20
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 18
- 229920002857 polybutadiene Polymers 0.000 claims description 16
- -1 acryl Chemical group 0.000 claims description 13
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 10
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 10
- 239000005062 Polybutadiene Substances 0.000 claims description 10
- 150000002825 nitriles Chemical class 0.000 claims description 10
- 229920002554 vinyl polymer Polymers 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 9
- 229920000642 polymer Polymers 0.000 claims description 8
- 238000011282 treatment Methods 0.000 claims description 8
- GYCMBHHDWRMZGG-UHFFFAOYSA-N Methylacrylonitrile Chemical compound CC(=C)C#N GYCMBHHDWRMZGG-UHFFFAOYSA-N 0.000 claims description 7
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 claims description 7
- 229920001577 copolymer Polymers 0.000 claims description 7
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 7
- 150000003440 styrenes Chemical class 0.000 claims description 7
- 125000005466 alkylenyl group Chemical group 0.000 claims description 6
- ADFPJHOAARPYLP-UHFFFAOYSA-N methyl 2-methylprop-2-enoate;styrene Chemical compound COC(=O)C(C)=C.C=CC1=CC=CC=C1 ADFPJHOAARPYLP-UHFFFAOYSA-N 0.000 claims description 6
- 229920006026 co-polymeric resin Polymers 0.000 claims description 5
- 229920002943 EPDM rubber Polymers 0.000 claims description 4
- BZDKYAZTCWRUDZ-UHFFFAOYSA-N buta-1,3-diene;methyl 2-methylprop-2-enoate;prop-2-enenitrile;styrene Chemical compound C=CC=C.C=CC#N.COC(=O)C(C)=C.C=CC1=CC=CC=C1 BZDKYAZTCWRUDZ-UHFFFAOYSA-N 0.000 claims description 4
- 229920012128 methyl methacrylate acrylonitrile butadiene styrene Polymers 0.000 claims description 4
- DEAKWVKQKRNPHF-UHFFFAOYSA-N methyl 2-methylprop-2-enoate;prop-2-enenitrile;styrene Chemical compound C=CC#N.COC(=O)C(C)=C.C=CC1=CC=CC=C1 DEAKWVKQKRNPHF-UHFFFAOYSA-N 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 2
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 claims description 2
- 229920003049 isoprene rubber Polymers 0.000 claims description 2
- 229920002285 poly(styrene-co-acrylonitrile) Polymers 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims 1
- 229920000578 graft copolymer Polymers 0.000 description 26
- 230000000052 comparative effect Effects 0.000 description 19
- 229920000126 latex Polymers 0.000 description 16
- 229940102838 methylmethacrylate Drugs 0.000 description 15
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 14
- 239000004816 latex Substances 0.000 description 13
- 238000006116 polymerization reaction Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000010410 layer Substances 0.000 description 8
- 239000002245 particle Substances 0.000 description 6
- 230000000704 physical effect Effects 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 5
- 239000003963 antioxidant agent Substances 0.000 description 5
- 235000006708 antioxidants Nutrition 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 230000003078 antioxidant effect Effects 0.000 description 4
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 4
- FRIBMENBGGCKPD-UHFFFAOYSA-N 3-(2,3-dimethoxyphenyl)prop-2-enal Chemical compound COC1=CC=CC(C=CC=O)=C1OC FRIBMENBGGCKPD-UHFFFAOYSA-N 0.000 description 3
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 239000008121 dextrose Substances 0.000 description 3
- 235000003891 ferrous sulphate Nutrition 0.000 description 3
- 239000011790 ferrous sulphate Substances 0.000 description 3
- 238000010559 graft polymerization reaction Methods 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 3
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- 238000012805 post-processing Methods 0.000 description 3
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 3
- 229940114930 potassium stearate Drugs 0.000 description 3
- ANBFRLKBEIFNQU-UHFFFAOYSA-M potassium;octadecanoate Chemical compound [K+].CCCCCCCCCCCCCCCCCC([O-])=O ANBFRLKBEIFNQU-UHFFFAOYSA-M 0.000 description 3
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 3
- 229940048086 sodium pyrophosphate Drugs 0.000 description 3
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 3
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 3
- 229920005992 thermoplastic resin Polymers 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- 229920006827 ABS/PMMA Polymers 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 239000003999 initiator Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000379 polymerizing effect Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000012966 redox initiator Substances 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000012792 core layer Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000007720 emulsion polymerization reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 235000019359 magnesium stearate Nutrition 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 description 1
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- SCUZVMOVTVSBLE-UHFFFAOYSA-N prop-2-enenitrile;styrene Chemical compound C=CC#N.C=CC1=CC=CC=C1 SCUZVMOVTVSBLE-UHFFFAOYSA-N 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F285/00—Macromolecular compounds obtained by polymerising monomers on to preformed graft polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/003—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/53—Core-shell polymer
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
- C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
- C08L2666/04—Macromolecular compounds according to groups C08L7/00 - C08L49/00, or C08L55/00 - C08L57/00; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
- C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
- C08L2666/24—Graft or block copolymers according to groups C08L51/00, C08L53/00 or C08L55/02; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/04—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to rubbers
Definitions
- the present invention relates to a scratch resistant resin composition. More particularly, the present invention relates to a thermoplastic resin composition having good scratch resistance, colorability, gloss, weatherability and impact resistance by blending a graft resin having a double shell structure and a resin containing (meth) acrylic acid alkyl esters.
- ABS resin acrylonitrile-butadiene-styrene graft copolymer resin
- OA office automation
- the ABS resins used in the housings of electronic products such as LCD, PDP TV, Audio, etc., tend to show scratches as a result of injection molding or during normal usage. Further, it is difficult to impart an elegant color to the ABS resin, which decreases its commercial value.
- g-MABS transparent ABS resin
- transparent ABS resin has good colorability, gloss, and impact resistance, it does not have sufficient scratch properties such as R-hardness and flexural modulus. Accordingly, warping or bending may occur during molding processes due to insufficient strength.
- an ABS/PMMA alloy has poor colorability and does not exhibit sufficient scratch resistance, although it has good impact resistance.
- the present inventors have developed a resin composition having good scratch resistance as well as a good balance of physical properties by blending a graft resin having a double shell structure and a resin containing (meth) acrylic acid alkyl esters. [10]
- An object of the present invention is to provide a resin composition having good scratch resistance.
- Another object of the present invention is to provide a resin composition having a good balance of colorability, weatherability, gloss, and impact resistance physical properties.
- a further object of the present invention is to provide a resin composition having a good balance of physical properties without requiring a post-processing treatment such as a UV coating, an acryl resin film coating, etc.
- One aspect of the invention provides a scratch resistant resin composition
- a scratch resistant resin composition comprising (A) about 5-50 parts by weight of a core-shell graft resin and (B) about
- the core-shell graft resin has a double shell structure comprising an inner shell and an outer shell.
- the outer shell may be polymethyl methacrylate (PMMA) resin.
- the core of said core-shell graft resin (A) may be butadiene rubber or butadiene/styrene rubber.
- the inner shell may be a styrene- acrylonitrile copolymer resin
- said outer shell may be a polymethyl methacrylate (PMMA) resin
- the inner shell and the outer shell may be a methyl methacrylate-acrylonitrile-styrene copolymer.
- the resin (B) may be polymethyl methacrylate resin, methyl methacrylate- aery - lonitrile-styrene (MSAN) resin, methyl methacrylate-styrene resin(MS) or a mixture thereof.
- MSAN methyl methacrylate- aery - lonitrile-styrene
- MS methyl methacrylate-styrene resin
- the core-shell graft resin (A) is methyl methacrylate-acrylonitrile-butadiene-styrene copolymer resin (g-MABS).
- the core-shell graft resin (A) comprises about 30 to about 70 parts by weight of rubber, about 15 to about 55 parts by weight of methyl methacrylate, about 1 to about 5 parts by weight of acrylonitrile and about 5 to about 35 parts by weight of styrene.
- the inner shell imparts impact resistance, and the outer shell imparts scratch resistance.
- the resin composition has a pencil hardness of F ⁇ 4H (in accordance with JIS
- the core-shell graft resin (A) is prepared by the steps comprising a first step of graft-polymerizing vinyl aromatic monomer and unsaturated nitrile monomer in the presence of rubber to form an inner shell; and a second step of adding (meth) acrylic acid alkyl ester monomer to graft- polymerize onto the inner shell.
- the method further comprises a step of post-treatment to form a powder.
- the core-shell graft resin (A) is prepared by the steps comprising a first step of graft-polymerizing (meth) acrylic acid alkyl ester monomer, unsaturated nitrile monomer, and vinyl aromatic monomer in the presence of rubber to form an inner shell; and a second step of adding a monomer mixture comprising (meth) acrylic acid alkyl ester monomer, unsaturated nitrile monomer, and vinyl aromatic monomer to graft-polymerize onto the inner shell.
- the method further comprises a step of post-treatment to form a powder.
- the resin composition comprises (A) a core-shell graft resin whose outer shell comprises (meth) acrylic acid alkyl ester and (B) a resin containing about 40-100 % by weight of a (meth) acrylic acid alkyl ester.
- the core of the core-shell graft resin (A) may be a rubber selected from the group consisting of butadiene rubber, acryl rubber, ethylene/propylene rubber, butadiene/ styrene rubber, acrylonitrile/butadiene rubber, isoprene rubber, ethylene- propylene-diene terpolymer (EPDM), polyorganosiloxane/polyalkyl(meth) acrylate rubber and mixtures thereof.
- butadiene rubber and butadiene/styrene rubber are preferred.
- the shell of the core-shell graft resin (A) may be a polymer of at least of one monomer selected from styrene, ⁇ -methylstyrene, halogen- or alkyl- substituted styrene, C -C methacrylic acid alkyl esters, C -C acrylic acid alkyl esters, acry- lonitrile, methacrylonitrile, maleic anhydride, C -C alkyl- or phenyl N-substituted maleimide and mixtures thereof.
- the shell has a double shell structure comprising an inner shell and an outer shell.
- the inner shell may impart impact resistance, and the outer shell may impart scratch resistance.
- the inner shell may comprise a polymer of at least of one monomer selected from styrene, ⁇ -methylstyrene, halogen- or alkyl- substituted styrene, C 1 -C 8 methacrylic acid alkyl esters, C 1 -C 8 acrylic acid alkyl esters, acrylonitrile, methacrylonitrile, maleic anhydride, C -C alkyl- or phenyl N-substituted maleimide and mixtures thereof.
- the outer shell may comprise a polymer of C -C methacrylic acid alkyl esters or C
- the outer shell may comprise a polymer of at least of one monomer selected from styrene, ⁇ -methylstyrene, halogen- or alkyl- substituted styrene, acrylonitrile, methacrylonitrile, maleic anhydride, C -C alkyl- or phenyl N-substituted maleimide, C -C methacrylic acid alkyl esters, C -C acrylic acid alkyl esters and mixtures thereof.
- the inner shell comprises a styrene-acry- lonitrile copolymer resin
- the outer shell comprises a polymethyl methacrylate (PMMA) resin
- the inner shell and outer shell may be a methyl methacrylate-acrylonitrile-styrene copolymer.
- the core-shell graft resin of the present invention may be prepared by the following methods.
- the inner shell and outer shell are different from each other in monomer composition.
- the method comprises a first step of graft-polymerizing vinyl aromatic monomer and unsaturated nitrile monomer in the presence of rubber to form an inner shell on the surface of rubber and a second step of forming an outer shell by graft-polymerizing (meth) acrylic acid alkyl ester monomer onto the inner shell so that the inner shell may be encompassed by the outer shell.
- an oil-soluble redox initiator system is preferably employed.
- a water soluble initiator is preferably employed.
- the core-shell graft resin (A) prepared from the above may be further subject to post-treatments, such as coagulation, washing, dehydration and so forth, to form a powder.
- the inner shell and outer shell may have the same monomer composition.
- the method comprises a first step of graft-polymerizing a portion of a monomer mixture comprising (meth) acrylic acid alkyl ester monomer, unsaturated nitrile monomer, and vinyl aromatic monomer in the presence of rubber to form an inner shell and a second step of adding residual monomer mixture to graft-polymerize onto the inner shell.
- an oil-soluble redox initiator system is preferably employed.
- a water soluble initiator is preferably employed.
- the core-shell graft resin (A) prepared from the above may be further subject to post-treatments, such as coagulation, washing, dehydration and so forth, to form a powder.
- Examples of the vinyl aromatic monomer can include styrene, ⁇ -methylstyrene, halogen- or alkyl- substituted styrene, and the like. These vinyl aromatic monomers may be used alone or in combination with each other.
- Examples of the unsaturated nitrile monomer can include acrylonitrile, methacrylonitrile, maleic anhydride, C -C alkyl- or phenyl N-substituted maleimide, C -C methacrylic acid alkyl esters, C -C acrylic acid alkyl esters, and the like. These unsaturated nitrile monomers may be used alone or in combination with each other.
- Examples of the (meth) acrylic acid alkyl ester monomer can include C -C methacrylic acid alkyl esters, C -C acrylic acid alkyl esters, and the like. These (meth) acrylic acid alkyl ester monomers may be used alone or in combination with each other.
- the core-shell graft resin prepared from the above methods may have improved colorability by making the refractive index of the graft MSAN of the shell layer the same as that of the rubber of the core layer and excellent scratch resistance by polymerizing methyl methacrylate monomer at the end of MSAN chain. Further, the core-shell graft resin may have high weatherability by enveloping the surface of rubber with methyl methacrylate in the outer layer.
- the core-shell graft resin (A) may be methyl methacrylate-acrylonitrile-butadiene-styrene copolymer resin (g-MABS).
- the core-shell graft resin (A) comprises about 30 to about 70 parts by weight of rubber, about 15 to about 55 parts by weight of methyl methacrylate, about 1 to about 5 parts by weight of acrylonitrile and about 5 to about 35 parts by weight of styrene.
- an inner shell is prepared by graft-polymerizing acrylonitrile and styrene monomer in the presence of about 30 to about 70% (based on solid content) of polybutadiene or butadiene- styrene rubber latex. Then, an outer shell is formed by graft polymerizing methylmethacrylate monomer onto the inner shell so that the inner shell may be encompassed by the outer shell.
- the monomer mixture may be emulsion polymerized while adjusting the proportion of the monomer mixture to have the same refractive index as the rubber of the core.
- the core-shell graft resin from the above process may be coagulated, dehydrated and dried to obtain a g-MABS resin in a fine powdery form.
- a monomer mixture comprising methyl methacrylate, acrylonitrile and styrene monomer is graft-polymerized in the presence of about 30 to about 70 % (based on solid content) of polybutadiene or butadiene- styrene rubber latex by emulsion polymerization while adjusting the proportion of the monomer mixture to have the same refractive index as the rubber of the core.
- the core-shell graft resin from the above process may be coagulated, dehydrated and dried to obtain a g-MABS resin in a fine powdery form.
- the rubber can have an average particle diameter of about 0.1 to about 0.3 D.
- a resin composition obtained therefrom may have a good balance of impact resistance, colorability and gloss physical properties.
- the butadiene rubber used in preparing the methyl methacrylate-acry- lonitrile-butadiene- styrene copolymer resin may be polybutadiene rubber or butadiene-styrene copolymer rubber.
- the content of styrene of the butadiene-styrene copolymer rubber may be about 0 to about 30 %.
- the g-MABS resin when polybutadiene rubber is used as a rubber component, the g-MABS resin comprises about 50.3 to about 22.2 parts by weight of methyl methacrylate, about 4.2 to about 1.5 parts by weight of acrylonitrile, about 30 to about 70 parts by weight of polybutadiene rubber and about 15.5 to about 6.3 parts by weight of styrene.
- the g-MABS resin comprises about 36.4 to about 15.8 parts by weight of methyl methacrylate, about 3.5 to about 1.5 parts by weight of acrylonitrile, about 30 to about 70 parts by weight of butadiene-styrene copolymer rubber and about 30.1 to about 12.7 parts by weight of styrene.
- the graft ratio of the core-shell graft resin (A) can be about 30 to about
- the resin composition of the present invention can be prepared by blending the core-shell graft resin (A) and the resin (B) containing about 40 to about 100 % by weight of a (meth) acrylic acid alkyl ester.
- the resin composition of the present invention comprises about 5 to about 50 parts by weight, preferably about 10 to about 35 parts by weight of the core-shell graft resin (A) and about 95 to about 50 parts by weight, preferably about 90 to about 65 parts by weight of the resin (B).
- the resulting resin composition may have good impact resistance, scratch resistance properties such as R-hardness, pencil hardness and so forth as well as gloss and colorability.
- the resin (B) may be methacrylate resin, methyl methacrylate-acrylonitrile-styrene
- MSAN methyl methacrylate- styrene resin
- MS methyl methacrylate- styrene resin
- the resin composition comprises the core-shell graft resin
- the resin composition comprises about 10 to about 35 parts by weight of the core-shell graft resin (A) and about 90 to about 65 parts by weight of polymethyl methacrylate resin.
- the resin composition comprises about
- core-shell graft resin (A) 10 to about 35 parts by weight of the core-shell graft resin (A), about 70 to about 20 parts by weight of polymethyl methacrylate resin and about 20 to about 45 parts by weight of MSAN resin.
- the resin composition comprises about
- the resin composition of the present invention may further comprise anti-oxidants, stabilizers, lubricants, flame retardants, pigment, dye and so forth.
- the resin composition according to the present invention can be prepared by extruding the core-shell graft resin (A), the resin (B) and additives together to form the thermoplastic resin in pellets.
- the resin composition of the present invention may have a pencil hardness of more than F (in accordance with JIS K5401), a R-hardness of more than about 115 (in accordance with ASTM D785) and an izod impact strength of more than about 7 kg-cm/cm (in accordance with ASTM D-256, 1/8 inch).
- the resin composition may have a pencil hardness of F ⁇ 4H (in accordance with JIS K5401), an R-hardness of about 115-123 (in accordance with ASTM D785) and an izod impact strength of about 7-20 kg-cm/cm (in accordance with ASTM D-256, 1/8 inch).
- a redox catalyst comprising 0.005 parts by weight of ferrous sulfate and 0.3 parts by weight of sodium pyrophosphate dissolved in water is added thereto to initiate graft polymerization.
- the temperature of the reactor is maintained at 7O 0 C for 60 minutes.
- the polymerization is carried out at 7O 0 C for an additional 30 minutes to give an inner shell layer.
- 0.6 parts by weight of potassium persulfate is added.
- a mixture comprising 33.23 parts by weight of methyl methacrylate and 0.3 parts by weight of t-dodecyl mercaptane is added to the reactor continuously over a period of 3 hours to conduct the polymerization reaction. After completion of the addition, the polymerization reaction is continued for an additional 60 minutes. The reaction is cooled to 6O 0 C and 1 part by weight of M497 (manufactured by CHUKYO YUSHI CO., LTD) as an antioxidant is added to obtain a graft copolymer (g-MABS) latex having a double shell structure in which an inner shell is surrounded by methyl methacrylate.
- M497 manufactured by CHUKYO YUSHI CO., LTD
- the graft ratio of the graft copolymer (g-MABS) latex is 58 %.
- the graft latex is coagulated with an aqueous solution comprising 1 % magnesium sulfate and 1 % sulfuric acid, washed, dehydrated and dried to yield a graft copolymer in the form of white powder containing less than 1 % water.
- Example 2 is prepared in the same manner as in Example 1 except that butadiene- styrene rubbery polymer latex having an average particle diameter of 0.25 D is used.
- the graft copolymer latex obtained therefrom has a graft ratio of 56 %.
- Example 3 is prepared in the same manner as in Example 1 except that polybutadiene rubbery polymer latex having an average particle diameter of 0.18 D is used.
- the graft copolymer latex obtained therefrom has a graft ratio of 60 %.
- a redox catalyst comprising 0.005 parts by weight of ferrous sulfate and 0.3 parts by weight of sodium pyrophosphate dissolved in water is added thereto to initiate graft polymerization.
- the temperature of the reactor is maintained at 7O 0 C for 60 minutes.
- the polymerization is carried out at 7O 0 C for an additional 30 minutes to give an inner shell layer.
- 0.6 parts by weight of potassium persulfate is added.
- a mixture comprising 1.58 parts by weight of acrylonitrile, 6.66 parts by weight of styrene, 23.26 parts by weight of methylmethacrylate and 0.3 parts by weight of t-dodecyl mercaptane is added to the reactor continuously over a period of 3 hours to conduct the polymerization reaction. After completion of the addition, the polymerization reaction is continued for an additional 60 minutes. The reaction is cooled to 6O 0 C and 1 part by weight of M497 (manufactured by CHUKYO YUSHI CO., LTD) as an antioxidant is added to obtain a graft copolymer latex. The graft ratio of the graft copolymer latex is 57 %.
- a redox catalyst comprising 0.005 parts by weight of ferrous sulfate and 0.3 parts by weight of sodium pyrophosphate dissolved in water is added thereto to initiate graft polymerization.
- the temperature of the reactor is maintained at 70 0 C for 60 minutes.
- the polymerization is carried out at 70 0 C for an additional 30 minutes to give an inner shell layer.
- 0.6 parts by weight of potassium persulfate is added.
- a mixture comprising 33.23 parts by weight of methyl methacrylate and 0.3 parts by weight of t-dodecyl mercaptane is added to the reactor continuously over a period of 3 hours to conduct the polymerization reaction. After completion of the addition, the polymerization reaction is continued for an additional 60 minutes. The reaction is cooled to 60 0 C and 1 part by weight of M497 (manufactured by CHUKYO YUSHI as an antioxidant is added to obtain a graft copolymer (g-MABS) latex having a double shell structure in which an inner shell is surrounded by methyl methacrylate. The graft ratio of the graft copolymer (g-MABS) latex is 61 %.
- thermoplastic resin containing g-MABS [86]
- the PMMA resin used in the following Examples is TP-100 or TP-160 (product name) manufactured by Cheil Industries Inc.
- the MS resin used in the following Examples is DENKA TX-600XL.
- the MSAN resin used in the following Examples is CT-5520 manufactured by Cheil Industries Inc.
- the MS resin used in the following Comparative Examples is DENKA TX-320XL or MS-300 manufactured by NIPPON STEEL CO., LTD.
- Example 7 is prepared in the same manner as in Example 6 except that 22 parts by weight of the graft copolymer obtained from Example 1 and 78 parts by weight of PMMA resin are used.
- Example 8 is prepared in the same manner as in Example 6 except that 18 parts by weight of the graft copolymer obtained from Example 1, 60 parts by weight of MS resin and 22 parts by weight of MSAN resin are used. [98]
- Example 9 is prepared in the same manner as in Example 6 except that 14 parts by weight of the graft copolymer obtained from Example 1, 50 parts by weight of PMMA resin and 36 parts by weight of MSAN resin are used. [101]
- Example 10 is prepared in the same manner as in Example 6 except that the graft copolymer obtained from Example 2 is used instead of the graft copolymer obtained from Example 1. [104]
- Example 11 is prepared in the same manner as in Example 6 except that the graft copolymer obtained from Example 3 is used instead of the graft copolymer obtained from Example 1. [107]
- Example 12 is prepared in the same manner as in Example 6 except that the graft copolymer obtained from Example 4 is used instead of the graft copolymer obtained from Example 1. [HO]
- Example 13 is prepared in the same manner as in Example 8 except 18 parts by weight of the graft copolymer obtained from Example 4, 60 parts by weight of MS resin and 22 parts by weight of MSAN resin are used. [113]
- Example 14 is prepared in the same manner as in Example 6 except that the graft copolymer obtained from Example 5 is used instead of the graft copolymer obtained from Example 1. [116]
- Comparative Example 1 is prepared in the same manner as in Example 8 except that
- Comparative Example 2 is prepared in the same manner as in Example 8 except that 22 parts by weight of the graft copolymer obtained from Example 6 and 78 parts by weight of methylmethacrylate-styrene resin (MS : MS-300 manufactured by NIPPON
- Comparative Example 3 is prepared in the same manner as in Example 8 except that
- Comparative Example 4 is prepared in the same manner as in Example 8 except that 100 parts by weight of ABS resin (Cheil SD-0150 manufactured by Cheil
- Comparative Example 5 is prepared in the same manner as in Example 8 except that 60 parts by weight of ABS resin (Cheil SD-0150 manufactured by Cheil Industries
- Comparative Example 6 is prepared in the same manner as in Example 8 except that ABS resin (Cheil SD-0150 manufactured by Cheil Industries Inc.) coated with urethane and UV consecutively is used.
- ABS resin Chemical SD-0150 manufactured by Cheil Industries Inc.
- urethane and UV consecutively is used.
- the resultant graft copolymer lattices obtained from Examples 1 to 5 are coagulated by isopropyl alcohol, dehydrated and dried to obtain white powder. The powder is dissolved with acetone followed by centrifugal separation. Insoluble portions are washed and dried, and the weight is measured. The graft ratio is obtained by the following equation: [136] [137]
- Pencil Hardness The pencil hardness was measured by applying 500 g load 5 times to a surface of a test sample having a size of 3 mm (thickness) x 10 mm (length) x 6 mm (width) according to JIS (Japanese Industry Standard) K5401 at 23 0 C. The surface of the sample is visually checked for scratches. If scratches are observed in two or more, the test is repeated with a pencil of one grade lower hardness. The results were classified into 4B-7H.
- Notch Izod Impact Strength The notch Izod impact strength is measured in accordance with ASTM D256 (1/8 inch, kgf-m/cm).
- Colorability The values of ⁇ L and ⁇ b are measured by means of a spectrophotometer. The standard is the ABS resin obtained from Comparative Example 4. If ⁇ L is negative, this means that the sample is lighter than the standard. ⁇ b defines the difference as a blue/yellow value. If ⁇ b is negative, the sample is more blue, which means good colorability.
- Comparative Example 1 using only PMMA resin exhibits poor impact resistance and injection moldability, although it has good scratch properties such as pencil hardness and R-hardness, gloss, colorability, and weatherability.
- Comparative Examples 2 and 3 in which MS resin contains methyl- methacrylate in an amount of less than 40 % exhibit insufficient R-hardness and pencil hardness, and colorability. Further, the weatherability and the colorability are deteriorated.
- Comparative Example 4 in which ABS resin is used alone exhibits poor pencil hardness, colorability and weatherability.
- Comparative Example 5 in which an ABS / PMMA alloy is used exhibits deteriorated impact resistance and colorability.
- Examples 6-14 in which g-MABS and acryl resin alloy are used exhibit an excellent balance of pencil hardness, R-hardness, colorability, weatherability, impact strength, flowability, tensile strength and flexural modulus physical properties.
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- Graft Or Block Polymers (AREA)
Abstract
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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EP07746342A EP2027207B1 (fr) | 2006-05-04 | 2007-05-03 | Composition de résine à bonne résistance à la rayure |
JP2009509420A JP5096460B2 (ja) | 2006-05-04 | 2007-05-03 | 耐スクラッチ性に優れた樹脂組成物 |
CN2007800018056A CN101360787B (zh) | 2006-05-04 | 2007-05-03 | 具有良好抗划伤性的树脂组合物 |
US12/253,463 US8314182B2 (en) | 2006-05-04 | 2008-10-17 | Resin composition having good scratch resistance |
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KR10-2006-0040708 | 2006-05-04 | ||
KR1020060040708A KR100799605B1 (ko) | 2006-05-04 | 2006-05-04 | 내스크래치성이 우수한 수지 조성물 |
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US12/253,463 Continuation-In-Part US8314182B2 (en) | 2006-05-04 | 2008-10-17 | Resin composition having good scratch resistance |
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WO2007129835A1 true WO2007129835A1 (fr) | 2007-11-15 |
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US (1) | US8314182B2 (fr) |
EP (1) | EP2027207B1 (fr) |
JP (1) | JP5096460B2 (fr) |
KR (1) | KR100799605B1 (fr) |
CN (1) | CN101360787B (fr) |
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US8314182B2 (en) | 2006-05-04 | 2012-11-20 | Cheil Industries Inc. | Resin composition having good scratch resistance |
US9096704B2 (en) | 2006-12-28 | 2015-08-04 | Cheil Industries Inc. | Impact modifier, method for preparing the same and scratch resistant methacrylate resin composition using the same |
US8865299B2 (en) | 2007-12-20 | 2014-10-21 | Lg Chem, Ltd. | Multi-layered acrylic retardation film and fabrication method thereof |
JP2011508257A (ja) * | 2007-12-20 | 2011-03-10 | エルジー・ケム・リミテッド | 多層構造のアクリル系位相差フィルムおよびその製造方法 |
CN102171277A (zh) * | 2008-10-02 | 2011-08-31 | Lg化学株式会社 | 光学膜及其制备方法 |
US8951643B2 (en) * | 2008-10-02 | 2015-02-10 | Lg Chem, Ltd. | Optical film and method of preparing same |
US20110183149A1 (en) * | 2008-10-02 | 2011-07-28 | Kang Byoung-Ii | Optical film and method of preparing same |
US9690027B2 (en) | 2008-10-02 | 2017-06-27 | Lg Chem, Ltd. | Optical film and method of preparing same |
EP2578641B1 (fr) * | 2010-05-28 | 2017-03-01 | LG Chem, Ltd. | MÉLANGE DE RÉSINES DESTINÉ À ÊTRE TRANSFORMÉ À L'ÉTAT FONDU et PASTILLE |
EP2743311A2 (fr) * | 2011-08-11 | 2014-06-18 | LG Chem, Ltd. | Composition de résine thermoplastique à base de méthacrylate d'alkyle et résine thermoplastique dont la résistance à la rayure et le jaunissement sont ajustés |
EP2743311A4 (fr) * | 2011-08-11 | 2015-03-11 | Lg Chemical Ltd | Composition de résine thermoplastique à base de méthacrylate d'alkyle et résine thermoplastique dont la résistance à la rayure et le jaunissement sont ajustés |
US9315658B2 (en) | 2011-08-11 | 2016-04-19 | Lg Chem, Ltd. | Alkyl(meth)acrylate-based thermoplastic resin composition and thermoplastic resin with high scratch resistance and low yellowness |
CN102417623A (zh) * | 2011-11-17 | 2012-04-18 | 铜陵亿亨达电子有限责任公司 | 一种新型电容器防爆橡胶密封盖及其制备方法 |
Also Published As
Publication number | Publication date |
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KR20070108008A (ko) | 2007-11-08 |
US20090043047A1 (en) | 2009-02-12 |
CN101360787A (zh) | 2009-02-04 |
US8314182B2 (en) | 2012-11-20 |
JP2009535476A (ja) | 2009-10-01 |
TW200804496A (en) | 2008-01-16 |
JP5096460B2 (ja) | 2012-12-12 |
KR100799605B1 (ko) | 2008-01-30 |
CN101360787B (zh) | 2011-12-14 |
EP2027207A1 (fr) | 2009-02-25 |
EP2027207A4 (fr) | 2009-05-27 |
EP2027207B1 (fr) | 2012-04-11 |
TWI364440B (en) | 2012-05-21 |
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